Finding the Fourth Proportional to 99,797.30, 149,760.20 and 39,815.54

Step by Step Solution

1. Step 1: Write the proportion equation
   99,797.30 : 149,760.20 = 39,815.54 : x
2. Step 2: Convert to fraction form
   99,797.30/149,760.20 = 39,815.54/x
3. Step 3: Cross multiply
   99,797.30x = 149,760.20 × 39,815.54
4. Step 4: Simplify right side
   99,797.30x = 5,962,783,233.51
5. Step 5: Solve for x
   x = 5,962,783,233.51/99,797.30
6. Step 6: Final answer
   x = 59,748.94